1951 01 99.99 -99.99  23.60 
1951 02 99.99 -99.99  23.60 
1951 03 99.99 -99.99  25.10 
1951 04 99.99 -99.99  24.40 
1951 05 99.99 -99.99  25.70 
1951 06 99.99 -99.99  24.40 
1951 07 99.99 -99.99  25.60 
1951 08 99.99 -99.99  26.40 
1951 09 99.99 -99.99  24.00 
1951 10 99.99 -99.99  24.80 
1951 11 99.99 -99.99  23.80 
1951 12 99.99 -99.99  23.70 
1952 01 99.99 -99.99  25.10 
1952 02 99.99 -99.99  24.40 
1952 03 99.99 -99.99  24.90 
1952 04 99.99 -99.99  24.70 
1952 05 99.99 -99.99  25.20 
1952 06 99.99 -99.99  24.80 
1952 07 99.99 -99.99  25.20 
1952 08 99.99 -99.99  26.60 
1952 09 99.99 -99.99  26.80 
1952 10 99.99 -99.99  26.00 
1952 11 99.99 -99.99  24.00 
1952 12 99.99 -99.99  24.00 
1953 01 99.99 -99.99  24.40 
1953 02 99.99 -99.99  24.80 
1953 03 99.99 -99.99  25.00 
1953 04 99.99 -99.99  25.10 
1953 05 99.99 -99.99  26.60 
1953 06 99.99 -99.99  24.20 
1953 07 99.99 -99.99  25.50 
1953 08 99.99 -99.99  26.50 
1953 09 99.99 -99.99  27.00 
1953 10 99.99 -99.99  25.70 
1953 11 99.99 -99.99  23.90 
1953 12 99.99 -99.99  23.90 
1954 01 99.99 -99.99  23.90 
1954 02 99.99 -99.99  25.00 
1954 03 99.99 -99.99  24.90 
1954 04 99.99 -99.99  25.10 
1954 05 99.99 -99.99  25.70 
1954 06 99.99 -99.99  25.10 
1954 07 99.99 -99.99  25.60 
1954 08 99.99 -99.99  26.90 
1954 09 99.99 -99.99  26.10 
1954 11 99.99 -99.99  23.40 
1954 12 99.99 -99.99  23.80 
1955 01 99.99 -99.99  24.10 
1955 02 99.99 -99.99  23.70 
1955 03 99.99 -99.99  25.10 
1955 04 99.99 -99.99  24.70 
1955 05 99.99 -99.99  25.40 
1955 06 99.99 -99.99  25.20 
1955 07 99.99 -99.99  26.00 
1955 08 99.99 -99.99  25.90 
1955 09 99.99 -99.99  25.40 
1955 10 99.99 -99.99  25.30 
1955 11 99.99 -99.99  24.30 
1955 12 99.99 -99.99  23.50 
1956 01 99.99 -99.99  23.20 
1956 02 99.99 -99.99  24.40 
1956 03 99.99 -99.99  24.70 
1956 04 99.99 -99.99  24.60 
1956 05 99.99 -99.99  25.80 
1956 06 99.99 -99.99  24.90 
1956 07 99.99 -99.99  25.10 
1956 08 99.99 -99.99  26.50 
1956 09 99.99 -99.99  27.00 
1956 10 99.99 -99.99  25.00 
1956 11 99.99 -99.99  23.70 
1956 12 99.99 -99.99  23.50 
1957 01 99.99 -99.99  23.80 
1957 02 99.99 -99.99  23.70 
1957 03 99.99 -99.99  24.10 
1957 04 99.99 -99.99  24.80 
1957 05 99.99 -99.99  25.10 
1957 06 99.99 -99.99  24.10 
1957 07 99.99 -99.99  25.20 
1957 08 99.99 -99.99  26.70 
1957 10 99.99 -99.99  25.00 
1957 11 99.99 -99.99  24.50 
1957 12 99.99 -99.99  23.10 
1958 01 99.99 -99.99  24.40 
1958 02 99.99 -99.99  24.40 
1958 03 99.99 -99.99  25.00 
1958 04 99.99 -99.99  25.90 
1958 05 99.99 -99.99  25.90 
1958 06 99.99 -99.99  25.80 
1958 07 99.99 -99.99  25.60 
1958 08 99.99 -99.99  26.20 
1958 09 99.99 -99.99  26.00 
1958 10 99.99 -99.99  25.00 
1958 11 99.99 -99.99  24.40 
1958 12 99.99 -99.99  23.80 
1959 01 99.99 -99.99  24.40 
1959 02 99.99 -99.99  24.30 
1959 03 99.99 -99.99  24.70 
1959 04 99.99 -99.99  25.30 
1959 05 99.99 -99.99  25.10 
1959 06 99.99 -99.99  24.80 
1959 07 99.99 -99.99  25.40 
1959 08 99.99 -99.99  26.60 
1959 09 99.99 -99.99  25.70 
1959 10 99.99 -99.99  24.20 
1959 11 99.99 -99.99  23.80 
1959 12 99.99 -99.99  23.70 
1960 01 99.99 -99.99  23.80 
1960 02 99.99 -99.99  23.80 
1960 03 99.99 -99.99  23.40 
1960 04 99.99 -99.99  24.60 
1960 05 99.99 -99.99  24.90 
1960 06 99.99 -99.99  24.70 
1963 06 99.99 -99.99  24.00 
1963 11 99.99 -99.99  22.50 
1963 12 99.99 -99.99  23.90 
1964 02 99.99 -99.99  24.40 
1964 05 99.99 -99.99  24.80 
1965 01 99.99 -99.99  23.60 
1965 02 99.99 -99.99  23.50 
1965 03 99.99 -99.99  23.20 
1965 04 99.99 -99.99  24.40 
1965 05 99.99 -99.99  24.40 
1965 06 99.99 -99.99  23.50 
1965 07 99.99 -99.99  24.20 
1965 08 99.99 -99.99  25.00 
1965 09 99.99 -99.99  26.20 
1965 10 99.99 -99.99  25.50 
1965 11 99.99 -99.99  23.70 
1965 12 99.99 -99.99  23.70 
1966 01 99.99 -99.99  20.70 
1966 02 99.99 -99.99  24.20 
1966 03 99.99 -99.99  24.30 
1966 04 99.99 -99.99  25.00 
1966 05 99.99 -99.99  25.50 
1966 06 99.99 -99.99  24.70 
1966 07 99.99 -99.99  24.40 
1966 08 99.99 -99.99  25.30 
1966 09 99.99 -99.99  25.60 
1966 10 99.99 -99.99  24.90 
1966 11 99.99 -99.99  28.20 
1966 12 99.99 -99.99  23.40 
1967 01 99.99 -99.99  24.10 
1967 02 99.99 -99.99  24.40 
1967 03 99.99 -99.99  24.30 
1967 04 99.99 -99.99  24.70 
1967 05 99.99 -99.99  24.70 
1967 06 99.99 -99.99  24.30 
1967 07 99.99 -99.99  25.40 
1967 08 99.99 -99.99  25.90 
1967 09 99.99 -99.99  26.30 
1967 10 99.99 -99.99  24.20 
1967 11 99.99 -99.99  23.20 
1967 12 99.99 -99.99  23.20 
1968 01 99.99 -99.99  23.30 
1968 02 99.99 -99.99  24.90 
1968 03 99.99 -99.99  24.00 
1968 04 99.99 -99.99  24.60 
1968 05 99.99 -99.99  24.80 
1968 06 99.99 -99.99  24.00 
1968 07 99.99 -99.99  24.10 
1968 08 99.99 -99.99  25.10 
1968 09 99.99 -99.99  25.70 
1968 10 99.99 -99.99  25.40 
1968 12 99.99 -99.99  23.60 
1969 01 99.99 -99.99  23.90 
1969 02 99.99 -99.99  23.90 
1969 03 99.99 -99.99  25.10 
1969 04 99.99 -99.99  25.50 
1969 05 99.99 -99.99  25.30 
1969 06 99.99 -99.99  23.90 
1969 07 99.99 -99.99  24.50 
1969 08 99.99 -99.99  25.70 
1969 09 99.99 -99.99  25.60 
1969 11 99.99 -99.99  23.10 
1969 12 99.99 -99.99  23.70 
1970 01 99.99 -99.99  23.90 
1970 02 99.99 -99.99  24.80 
1970 03 99.99 -99.99  24.70 
1970 04 99.99 -99.99  25.90 
1970 05 99.99 -99.99  24.70 
1970 06 99.99 -99.99  23.90 
1970 07 99.99 -99.99  25.00 
1970 08 99.99 -99.99  25.40 
1970 09 99.99 -99.99  25.40 
1970 10 99.99 -99.99  24.90 
1970 11 99.99 -99.99  23.80 
1970 12 99.99 -99.99  23.20 
1971 01 99.99 -99.99  23.30 
1971 02 99.99 -99.99  23.60 
1971 03 99.99 -99.99  24.60 
1971 04 99.99 -99.99  24.40 
1971 05 99.99 -99.99  24.80 
1971 06 99.99 -99.99  23.20 
1971 07 99.99 -99.99  24.50 
1971 08 99.99 -99.99  24.90 
1971 09 99.99 -99.99  25.40 
1971 10 99.99 -99.99  25.30 
1971 11 99.99 -99.99  23.80 
1971 12 99.99 -99.99  22.90 
1972 01 99.99 -99.99  24.60 
1972 02 99.99 -99.99  23.40 
1972 03 99.99 -99.99  24.70 
1972 04 99.99 -99.99  25.00 
1972 05 99.99 -99.99  26.10 
1972 06 99.99 -99.99  24.50 
1972 07 99.99 -99.99  25.40 
1972 08 99.99 -99.99  25.50 
1972 09 99.99 -99.99  26.80 
1972 10 99.99 -99.99  25.60 
1972 11 99.99 -99.99  23.80 
1972 12 99.99 -99.99  24.30 
1973 01 99.99 -99.99  23.90 
1973 02 99.99 -99.99  25.40 
1973 03 99.99 -99.99  25.60 
1973 04 99.99 -99.99  25.10 
1973 05 99.99 -99.99  25.10 
1973 06 99.99 -99.99  24.20 
1973 07 99.99 -99.99  24.40 
1973 08 99.99 -99.99  26.10 
1973 09 99.99 -99.99  26.60 
1973 10 99.99 -99.99  25.30 
1973 11 99.99 -99.99  23.40 
1973 12 99.99 -99.99  23.20 
1974 01 99.99 -99.99  23.40 
1974 02 99.99 -99.99  24.20 
1974 03 99.99 -99.99  24.20 
1974 04 99.99 -99.99  24.60 
1974 05 99.99 -99.99  24.20 
1974 06 99.99 -99.99  23.20 
1974 07 99.99 -99.99  25.00 
1974 08 99.99 -99.99  25.80 
1974 09 99.99 -99.99  26.00 
1974 10 99.99 -99.99  25.00 
1974 11 99.99 -99.99  23.90 
1974 12 99.99 -99.99  23.70 
1975 01 99.99 -99.99  24.00 
1975 02 99.99 -99.99  24.70 
1975 03 99.99 -99.99  24.50 
1975 04 99.99 -99.99  24.70 
1975 05 99.99 -99.99  24.90 
1975 09 99.99 -99.99  25.40 
1975 10 99.99 -99.99  25.10 
1975 11 99.99 -99.99  23.20 
1975 12 99.99 -99.99  23.40 
1976 01 99.99 -99.99  24.00 
1976 02 99.99 -99.99  23.60 
1976 03 99.99 -99.99  24.30 
1976 04 99.99 -99.99  24.30 
1976 05 99.99 -99.99  24.70 
1976 06 99.99 -99.99  23.90 
1976 07 99.99 -99.99  24.50 
1976 08 99.99 -99.99  25.20 
1976 09 99.99 -99.99  26.10 
1976 10 99.99 -99.99  25.00 
1976 11 99.99 -99.99  23.40 
1976 12 99.99 -99.99  23.80 
1983 02 99.99 -99.99  25.30 
